The fuelpump relay is behind the battery behind a black plastic cover. You have the computer there, to the right of it (if you face the car) there are three relays, one is the overvoltage protection relay with the fuse on top of it (it is smaller then the other two) , the other says "Klima" on it and the third one is the fuelpump realy. It is black in colour same size as the "Klima" one. It is a sealed unit. According to my Electrical Trouble Shooting manual there is a Diagnostic Socket on the left front inner fender, it is blak with a round srew-on cap on top of it. By the way this manual is available from the dealer in paperback for a nominal fee (around $15.00).